Bottom-dumping bucket.



G. L. STUEBNER. BOTTOM DUMPING BUCKET.

APPLIUATION FILED AUG. 13, 190e.

986, l O0, Patented Mar. 7, 1911.

2 SHEETS-SHEET 1.

G. L. STUEBNER. BOTTOM DMPING BUCKET.

APPLNATION HLBD AUG.` 1s, 1908.

2 SHEETS-SHEET 2.

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BOTTOlVI-DUMPING BUCKET.

Specification of Letters Patent.

Application filed August 13, 1908.

Patented Mar. *7, 1911. serial No. 448,322.

To all whom 'it may concern.'

Be it known that I, GUs'rAvUs L. Sannn- NER, a citizen of the United States, and a resident of Flushing, in the county of Queens and State of New York, have invented certain new and useful Improvements in Bottom-Dumping Buckets, of which the following is a specication.

This invention relates to bottom dumping buckets, and its object is the production of a bucket to the body of which is attached one or a pair of doors that can be locked in position without the use of any latches, bolts and the like. The bucket is also characterized by a locking device which increases in effectiveness with the load or the weight of the charge in the buckets.

In the drawings Figure l represents a front elevation of a bucket exemplifying the invention, Fig. 2 shows a right hand side view of Fig. 1, Fig. 3 is a top view of Fig. l, Fig. 4 represents a view similar to Fig. l with the doors of the bucket dropped or in their lowered positions, Fig. 5 shows a partial section through one of the doors as on the line 5, 5 of Fig. 3, Fig. 6 is a section similar to Fig. 5 with a modification and Fig. 7 shows a top view of Fig. 6.

The bucket exemplifying the invention is shown with the body 20 having sides with the curved bottom edges 2l, the upper reinforcing band 22, the lower reinforcing band 23 and the bail 24. The left hand side of the body 20 is shown at 25 and the right hand side at 26.

From the band 23 extend pivots 2S, 29, on which are hinged the swinging doors 30 and 3l. The doors each comprises side plates 32, 33 to which are attached angle irons 36, that support the bottom plate 37. Angle irons 3S and 39 are fastened to the lower faces of the bottom plates 37 to stilen the same. The side plates 32 are each stiffened by the reinforcing bars 40 from which extend the bearing plates 41, which latter with t-he bars 40 are of sufficient thickness for openings to constitute good bearings for the pivots 28. The side plates 33 of the door 3l have each fastened thereto an arm 43 with a bearing' plate 44, which two latter are of sufiicient thickness for openings to constitute good bearings for the pivots 29. On the outer portions of each of the plates 37 are located filling blocks 42 with concaved faces conformed to arcs struck from the centers of the pivots 28 and 29. Each arm 43 has formed therewith the extension 48, to which is pinned the U shaped link 45 having the legs 46 and 47 by means of the pins 49. A pivot block 50 with the pivot pin 5l is attached to each side of the body of the bucket. Locking bifurcated ears 53, 54 and the arms 55. The links 52 are each pivoted at one end on the pivots 5l by means of openings in the ears 53. The ears 54 are pinned to the legs 47 of the links 45 by means of the pins 56. A handle bar 57 connects the arms 55. A connecting' link 60 on each side of the bucketis pivoted at one end on a pin 6l extending from the arm 43 and at the other end on a pin 62 extending from the door 30.

To operate the invention the arms 55 are placed in their lowered position as shown in Fig. l to close the door 30, 31, and the pin 49 being below and to the right of the center line connecting the pins 5l and 56, the charge or weight on the doors tends to pull the leg 47 of the link 45 down in the direction of the arrow 65, which tends to lock the link 45 with the locking link 52 and maintains the doors locked up against the lower edges of the body of the bucket. lV hen it is desired to lower the doors 30, 3l to discharge the contents of the bucket the handle bar 57 is raised which causes the locking links 52 to swing up on the pivots 5l to the position shown in Fig. 4, each U shaped link 45 with its connecting parts being lowered and the doors 30, 3l swinging on the pivots 28 and 29 to the positions shown in said Fig. 4. lVhen the said doors swing on their pivots the curved lower edges 2l of the side plates of the body of the bucket allow them with the filling blocks 42 to swing in place in close proximity to the said lower edges.

In Figs. 6 and 7 the doors are modified by eliminating the filling blocks 42, and in place thereof the bottom plates 70 between the side plates 7l similar to 32, 33 of thc doors are curved up as shown at- 72. Filling blocks 73, and angles 74 preferably support the outer ends of the plates 70. Instead of the arms 43 the side plates of the doors might be extended to form the arms.

rlhe invention may be further modified by omitting the side plates 32 and 33 of the doors, and attaching the reinforcing bars 40 and arms 43 to the angles 36 of said doors.

The bucket in the accompanying drawlinks 52 have each the ings has been shown with a rectangular body, and it will be noted that the body may be cylindrical or of any other suitable shape.

Having described my invention I claim: l. In a bucket the combination of a body Y having curved lower edges, a pair of doors pivoted thereto, side plates for the doors,

bottom plates for the doors, lling blocks on the bottom plates curved to gage With curved lower edges of the body of the bucket, locking links pivoted to opposite sides of the bucket, arms extending from the side plates of one of the doors, links connectingthe arms and the locking links, the latter link locking itself with the locking link when the doors close the bucket, connecting links connecting the said arms and the side plates of the other door, arms extending from the locking links, and a handle bar connecting the arms.

2. In a bucket the combination of a body having curved lower edges, a pair of doors pivoted to the bucket, bottom plates for the doors With their outer portions curved to register with the curved edges of the bucket When the doors are in their closed posit-ions, an arm extending from one of the sides of one of the doors, a defiecting extension extending from said arm, a locking link pivoted to the bucket, a U shapedlink connecting one end of Athe locking link and said extension and a connecting link connecting said arm With the other door of the bucket.

3. In a bucket the combination of a body having curved lower edges, a pair of doors piyoted to the bucket, bottom plates for the doors With their outer portions curved to register with the curved edges of the bucket when the doors are in their closed posit-ions, arms extending from one of the doors on opposite sides of the bucket, a deflecting extension extending from each of said arms, a locking link on each side of the bucket With one end of each pivoted to the bucket, a U shaped link for each side of the bucket With one end of each pinned to the end of its accompanying locking link on the end thereof opposite to the pivot that connects it to the side of the bucket, the other ends of the U shaped links connected to the said deflected extensions, and links connecting said arms with the other door of the bucket.

Signed at Long Island City, in the county of Queens and State of New York this 8th day of August A. D. 1908.

GUSTAVUS L. STUEBNER. Witnesses:

GEO. A. STUEBNER, H. MATHISON.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

